Obscenity and coarse joking are so common that we begin to take them for granted. Paul cautions, however, that improper language should have no place in the Christian’s conversation because it does not reflect God’s gracious presence in us. How can we praise God and remind others of his goodness when we are speaking coarsely?
Obscene stories, foolish talk, and coarse jokes—these are not for you. Instead, let there be thankfulness to God. (Ephesians 5:4 NLT)